3 countries control 66% of Bitcoin mining, but 1 rival is gaining
Data from Hashrate Index shows the US Bitcoin mining footprint decreased while Russia expanded. The US, Russia, and China still control roughly 66 percent of the estimated global network hashrate.
Bitcoin’s estimated US mining footprint decreased as Russia’s expanded, while the overall concentration among the top three countries showed minimal change.
According to country estimates published by Hashrate Index on Oct. 5, the US fell to approximately 335 EH/s from 345 EH/s in the prior edition. Meanwhile, Russia increased from 162 to 170 EH/s.
The US, Russia, and China continue to represent roughly 66% of the estimated network. Their combined proportion dipped by about 0.8%, even though the global hashrate estimate remained nearly flat.
This reflects a modest adjustment in geographic concentration alongside a clearer shift in the balance between the two primary mining jurisdictions.
Hashrate Index—a mining data platform operated by Luxor Technology—designates the report as its fourth-quarter update, though the data reflects observations from the preceding third quarter. Its July 16 comparison edition presented June estimates.
The October publication functions neither as a finalized fourth-quarter result nor as a real-time census of active machines as of Oct. 6.
A smaller US share leaves the same three leaders
The data distinguishes absolute mining activity from network share. The estimated US hashrate declined as its share dropped from 36.7% to 35.6%. Conversely, Russia gained in both estimated hashrate and share, moving from 17.2% to 18.1%. China’s estimate dropped from roughly 115 to 110 EH/s.
| Location or metric | July edition | October edition |
|---|---|---|
| United States | About 345 EH/s; 36.7% | About 335 EH/s; 35.6% |
| Russia | About 162 EH/s; 17.2% | About 170 EH/s; 18.1% |
| China | About 115 EH/s; 12.2% | About 110 EH/s; 11.7% |
| Global network | About 940 EH/s | About 941 EH/s |
The network total represents a 30-day simple moving average of hashrate, which measures the computing power dedicated to mining.
The provider’s methodology summary outlines a weighted combination of pool data, ASIC trading activity, and firmware adoption metrics.
A separate mining-map methodology from Cambridge cautions that pool samples may be unrepresentative and that VPNs or proxies can distort inferred geographic locations.
The October comparison from Hashrate Index places the combined share of the top three countries at 65.4%, down from 66.2%. Calculating from the rounded EH/s figures yields approximately that 0.8% decrease. This shift leaves the US with a smaller portion and Russia with a larger one, while the top three nations maintain their dominance.
The country shares published in July sum to 66.1%, whereas the rounded EH/s figures yield the provider’s 66.2% aggregate after rounding. These variances differ from sampling or estimation error, and the comparison offers no confidence range to establish statistical significance.
A reduced estimated US share lowers the portion assigned to that region, whereas a higher Russian share raises Russia’s attributed portion. These shifts alter geographic exposure without proving that the network has gained a greater number of independent mining capacity sources.
Equipment shutting down in one country while other machinery activates elsewhere can alter the distribution without physical hardware transfers between them. The country totals do not demonstrate any direct transfer of assets from the US to Russia.
Location leaves ownership and operating status unresolved
A country’s mining share indicates the estimated geographic location of computing activity, whereas beneficial ownership identifies who ultimately owns the equipment.
Pool control refers to the entity coordinating mining operations and selecting transactions for inclusion in blocks. Treating these concepts as interchangeable turns a location estimate into an assertion about decision-making authority.
The Bitcoin developer guide’s explanation of pooled mining separates the miners supplying hashing power from the mining pool that coordinates operations and distributes rewards. In legacy Stratum implementations, miners receive the data required to construct block headers but cannot inspect or append transactions to the block.
This structure renders transaction selection independent of the physical location of the machines. Distributing hardware across a wider range of countries does not prove that a greater number of independent entities are determining block contents.
Similarly, a coordinating mining pool is not automatically the beneficial owner of all hardware contributing to it.
While Stratum V2 transaction-selection architecture permits miners to choose a transaction set optionally, this capability does not indicate how broadly it is deployed today.
A comprehensive evaluation requires ownership details alongside contemporaneous data regarding pool participation and block-template selection. The quarterly country statistics establish neither greater ownership diversity nor steady pool concentration.
Geographic data also fails to clarify developments at individual facilities. Luxor attributes certain regional mining reductions to a transition toward artificial intelligence and high-performance computing (HPC). Disclosures from individual companies confirm that this conversion activity is occurring.
In an operational update on Aug. 10, Keel Infrastructure reported that it had finished decommissioning all US Bitcoin mining operations to prepare for HPC development.
Core Scientific outlined an ongoing process in its July 28 results to repurpose remaining mining infrastructure for high-density colocation services as conditions permit. That operational status differs from a permanent exit from mining.
These instances substantiate corporate actions taken by specific firms. Reports investigating miners’ AI commitments addressed the execution aspect before this country comparison was released.
Equipment that is temporarily idled may resume hashing if the underlying causes for curtailment improve. Conversely, a site undergoing reconstruction or reallocated to an alternative workload follows a different trajectory. A decline in hashrate alone does not clarify what occurred or how long-lasting the shift will be.
Luxor also points to power restrictions in Ethiopia to explain decreases in that nation. Such explanations require independent evidence, as country deltas cannot verify the impact of power rationing, seasonal shifts, or regulatory policy. The geographic estimates and their attributed causes remain separate claims.
The aggregate network estimate remained virtually unchanged, shifting from approximately 940 to 941 EH/s. This overall stability can coexist with reduced US activity because gains in other regions offset domestic losses, offering little insight into whether US miners have restored operating capacity or improved their financial metrics.
The most useful subsequent evidence relates directly to specific mining risks: recurring country observations to gauge persistence, corporate disclosures distinguishing real conversions from temporary curtailments, and ownership or pool statistics to evaluate control. A single, nearly flat network total cannot address all three.
For the present, geographic exposure has shifted within a mining network that remains heavily concentrated. Demonstrating broader decentralization requires evidence concerning the ownership and coordination of capacity, alongside its physical location.
Frequently Asked Questions
01What factors cause shifts in a country’s estimated Bitcoin mining share?
Shifts can stem from hardware turning off or starting up in different regions, transitions toward artificial intelligence and high-performance computing (HPC), local power restrictions, seasonal conditions, or regulatory policy changes.
02Does a country’s mining share indicate who owns the equipment?
No. Geographic share estimates where computing activity takes place, whereas beneficial ownership identifies who owns the hardware, and pool control determines who coordinates mining operations and selects transactions.
03Are quarterly country comparisons a real-time census of mining machines?
No. These publications reflect observations from preceding quarters and rely on a weighted combination of pool data, ASIC trading flows, and firmware adoption trends rather than live censuses.
